find non zero elements in array
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im trying to implement find non zero elements without using "find' toolbox in simulink. im using matlab function block as shown on the screenshot
function y = non_zero(u)
x=find(u);
y=x
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/679513/image.png)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/679518/image.png)
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Soniya Jain
le 10 Juil 2021
As mentioned in the error, that y is non-tunable, so have you tried to select the 'Variable Size' checkbox by specifying the upper bounds in the Size box?
Also, find function will return the index of the non zero elements in a vector, so if you want values at the index, you can code in the following way:
function y = non_zero(u)
x = find(u); % will return index of non-zero elements
y = y(x);
end
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Soniya Jain
le 11 Juil 2021
So have you tried to select the 'Variable Size' checkbox by specifying the upper bounds in the Size box?
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